YANKTON, SD 57078 Weather Forecast & Current Conditions

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YANKTON, SD
Current Weather

12:56 PM CDT JUL 25, 2026
Clear
93°F
Feels Like: 107°F
Dewpoint: 77°F
Rel. Hum.: 60%
Visibility: 10 miles
Wind: SSW at 7 mph
Pressure: 29.90 inches
Last 72 hours

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YANKTON, SD 57078
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
THIS AFTERNOON
Mostly sunny. Much warmer with highs in the upper 90s. South winds 5 to 10 mph. Heat index values up to 109.
TONIGHT
Mostly cloudy with a slight chance of showers and thunderstorms. Humid with lows in the mid 70s. Southeast winds 5 to 10 mph, becoming east 10 to 15 mph after midnight. Chance of rain 20 percent. Heat index values up to 107 early in the evening.
SUNDAY
Mostly cloudy in the morning, then becoming mostly sunny. Hot with highs in the upper 90s. South winds 5 to 10 mph with gusts up to 20 mph, increasing to 15 to 20 mph with gusts up to 30 mph in the afternoon. Heat index values up to 108 in the afternoon.
SUNDAY NIGHT
Partly cloudy with a chance of showers with a slight chance of thunderstorms in the evening, then mostly clear after midnight. Humid with lows in the mid 70s. South winds 10 to 15 mph, becoming southwest after midnight. Chance of rain 20 percent. Heat index values up to 106 early in the evening.
MONDAY
Sunny, hot with highs in the upper 90s. North winds 5 to 10 mph, becoming northeast with gusts up to 20 mph in the afternoon.
MONDAY NIGHT
Partly cloudy in the evening, then mostly cloudy with a chance of sprinkles after midnight. Lows in the lower 70s. Heat index values in the upper 90s early in the evening.
TUESDAY
Mostly sunny. Highs in the mid 90s.
TUESDAY NIGHT
Mostly clear. Lows in the upper 60s.
WEDNESDAY
Mostly sunny. Hot with highs in the mid 90s.
WEDNESDAY NIGHT
Mostly clear in the evening, then partly cloudy with a chance of showers and thunderstorms after midnight. Lows around 70. Chance of rain 40 percent.
THURSDAY
Partly sunny with a chance of showers and thunderstorms in the morning, then sunny in the afternoon. Highs in the mid 90s. Chance of rain 40 percent.
THURSDAY NIGHT
Mostly clear with a chance of showers and thunderstorms. Lows around 70. Chance of rain 30 percent.
FRIDAY
Partly sunny in the morning, then clearing. Highs in the lower 90s.

Visible Weather Satellite
YANKTON, SD 57078
Infrared Weather Satellite
YANKTON, SD 57078
NEXRAD Weather Radar
YANKTON, SD 57078

YANKTON, SD 3 hourly weather forecast

weather forecast created  5:00 AM PDT  7/25/2026
Saturday
25 JUL 2026
YANKTON, SD 57078 weather forecast Day 1, 12 hours 1 PM 90° 103° Partly Cloudy 2%

0% Thunder
( 12% severe)
WSW   5 66% 77°
High 97° YANKTON, SD 57078 weather forecast Day 1, 15 hours 4 PM 96° 107° Partly Cloudy SE   8 49% 74°
Partly Cloudy



YANKTON, SD 57078 weather forecast Day 1, 18 hours 7 PM 93° 106° Partly Cloudy 13%
RAIN
<.01 in
0% Thunder
( 27% severe)
SE   8 58% 76°
YANKTON, SD 57078 weather forecast Day 1, 21 hours 10 PM 84° 90° Mostly Cloudy SSW   10 70% 73°
Sunday
26 JUL 2026
YANKTON, SD 57078 weather forecast Day 2, 0 hours 1 AM 81° 85° Mostly Cloudy 3%

0% Thunder
( 16% severe)
NE   9 74% 72°
Low 76° YANKTON, SD 57078 weather forecast Day 2, 3 hours 4 AM 78° 80° Mostly Cloudy E   8 76% 70°
High 99° YANKTON, SD 57078 weather forecast Day 2, 6 hours 7 AM 76° 77° Mostly Cloudy 2%

0% Thunder
( 13% severe)
S   7 82% 70°

Mostly Cloudy



YANKTON, SD 57078 weather forecast Day 2, 9 hours 10 AM 84° 91° Mostly Cloudy S   8 72% 74°
YANKTON, SD 57078 weather forecast Day 2, 12 hours 1 PM 93° 105° Partly Cloudy 7%

0% Thunder
( 14% severe)
S   14 56% 75°
YANKTON, SD 57078 weather forecast Day 2, 15 hours 4 PM 97° 107° Partly Cloudy S   16 46% 73°
YANKTON, SD 57078 weather forecast Day 2, 18 hours 7 PM 94° 106° Partly Cloudy 8%

0% Thunder
( 19% severe)
S   14 54% 75°
YANKTON, SD 57078 weather forecast Day 2, 21 hours 10 PM 85° 93° Partly Cloudy SSE   12 70% 74°
Monday
27 JUL 2026
YANKTON, SD 57078 weather forecast Day 3, 0 hours 1 AM 81° 86° Partly Cloudy 2%

0% Thunder
( 16% severe)
SSW   9 79% 74°
Low 74° YANKTON, SD 57078 weather forecast Day 3, 3 hours 4 AM 77° 78° Clear W   7 85% 72°
High 97° YANKTON, SD 57078 weather forecast Day 3, 6 hours 7 AM 74° 74° Mostly Cloudy 0%

0% Thunder
( 5% severe)
NNW   6 87% 70°

Decreasing Clouds



YANKTON, SD 57078 weather forecast Day 3, 9 hours 10 AM 84° 89° Clear NNE   7 65% 71°
YANKTON, SD 57078 weather forecast Day 3, 15 hours 1 PM 91° 94° Clear 0%

0% Thunder
( 7% severe)
NE   9 44% 66°
YANKTON, SD 57078 weather forecast Day 3, 18 hours 4 PM 95° 96° Clear ENE   8 34% 62°
YANKTON, SD 57078 weather forecast Day 3, 21 hours 7 PM 92° 94° Clear     ENE   7 41% 65°

YANKTON, SD extended weather forecast

Tuesday
28 JUL 2026
Wednesday
29 JUL 2026
Thursday
30 JUL 2026
Friday
31 JUL 2026
Saturday
1 AUG 2026
Low 73° Low 70° Low 69° Low 67° Low 67°
High 99° High 94° High 92° High 87° High 88°
YANKTON, SD 57078 weather forecast Day 4 YANKTON, SD 57078 weather forecast Day 5 YANKTON, SD 57078 weather forecast Day 6 YANKTON, SD 57078 weather forecast Day 7 <!--SEARCHED_TOWN_NAME--> weather forecast Day 8
Partly Cloudy
16% Rain
Partly Cloudy
23% Rain
Partly Cloudy
23% Rain
Partly Cloudy
39% Rain
Partly Cloudy
24% Rain
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